White to Non-White Racial Dissimilarity (5-year estimate) Index for Ashtabula County, OH was 46.24% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Ashtabula County, OH reached a record high of 47.47 in January of 2021 and a record low of 40.70 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for White to Non-White Racial Dissimilarity (5-year estimate) Index for Ashtabula County, OH - last updated from the United States Federal Reserve on May of 2024.